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摘要
A new fluorescent sensor 1, based on the naphthalimide chromophore and thioether-rich crown receptor, exhibited dual signaling behaviors for Hg2+ and Ag+ in aqueous solution. Upon addition of Hg2+, the fluorescence intensity enhanced in a linear fashion with a quantum yield increase of about 5-fold. Moreover, with the 1-Hg2+ complex, Ag+ was easily recognized by a marked fluorescence quenching. The living cells image experiments demonstrate the value of sensor 1 in fluorescent visualization of Hg2+ ions in biological systems.
- 出版日期2010
- 单位华东理工大学
